Cover for inscription fields

ABSTRACT

A cover, in particular for covering inscription fields, includes a cover element configured to be inserted into a base body. At least one hooking-in element on the cover element can be engaged with at least one cutout on the base body. At least one latching tab on the cover element can engage with at least one latching opening on the base body, thus making it possible to form a detachable latching connection between the cover element and the base body. The cover element and/or the base body can be at least partially elastically deformed in a direction running parallel to the surface in the area of the at least one hooking-in element and/or in the area of the at least one latching tab and/or in the area of the at least one cutout receiving the hooking-in element, so that the cover element and the base body can be locked to one another by latching in a sprung manner.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No. 11/318,208, filed Dec. 23, 2005, which claims priority to German Application No. DE 10 2004 061 973.5, filed Dec. 23, 2004, the disclosures of which are hereby incorporated by reference herein.

TECHNICAL FIELD

The invention relates to a cover, in particular for inscription fields, as can be used for housings or front panels of electrical appliances or connections.

BACKGROUND

Covers for inscription fields as components of telephone housings are already known and are disclosed, by way of example, in DE 411 0710 C1. This relates to a telephone housing with an insert path which can be moved in a replaceable frame, inter alia locks the cover plate of an inscription field in the operating position, and releases it when moved in the direction of a rest trough. The inscription field may in this case be fitted in a recessed form, in which case a rear edge of the insert part can be pushed over a locking tab on the upper edge of the cover plate of the inscription field for locking, and the rear edge of the cover plate is mounted such that it can pivot on the telephone housing.

Inscription fields which have to be covered do not just occur in the case of telephone housings, however, but are also being increasingly required for industrial purposes, for example for identification of data lines, electrical cables and connections as well as associated housings or front panels. The requirements in this case are comparatively stringent, in particular with regard to optimum installation capability, flexibility, the capability for versatile use, the capability to be operated easily, robust construction and protection against dust or items being used, which requirements have not yet been adequately satisfied by the known covers for inscription fields.

The optimization of covers, in particular for inscription fields, thus represents a problem which until now has not yet been satisfactorily solved by the normal apparatuses known from the prior art.

SUMMARY

The invention is therefore based on the technical problem of providing an improved cover, in particular for inscription fields.

The invention is in this case based on the discovery that the particularly advantageous arrangement of hooking-in elements and latching tabs on a cover element and on an associated base body in conjunction with the characteristic of elastic deformability in a direction which runs parallel to the surface of the cover makes it possible to produce a robust, functional cover, which can be used in a versatile manner and is simple to handle, for inscription fields of any desired type. According to the invention, this is achieved by proposing a cover element, which is provided for insertion into a base body which is in the form of a holder, with at least one hooking-in element being provided on the cover element, which can be engaged with at least one cutout, which is in the form of a hooking-in opening on the base body, and with at least one latching tab being provided on the cover element and/or on the base body, which can engage with at least one cutout which corresponds to the latching tab, and/or is provided on the cover element and is in the form of a latching opening, thus making it possible to form a detachable latching connection between the cover element and the base body, and in which case the cover element and/or the base body can be at least partially elastically deformed in a direction running parallel to the surface in the area of the at least one hooking-in element and/or in the area of the at least one latching tab and/or in the area of the at least one cutout which is in the form of a hooking-in opening, so that the cover element and the base body can be locked to one another by latching in a sprung manner. The surface is in this case either that outer surface of the cover element which faces away from the base body in the latched-in state or that face which bears against the base body in the latched-in state.

In one advantageous embodiment, the cover element is formed from transparent material. The cover is in this case preferably used for fixing and for protection of a label, composed of paper or film for example, and designed to be adhesive or non-adhesive and on which the information to be conveyed to a user by means of the inscription field is provided. In order to allow the user to see this information at any time and in order that it is available to him without having to do anything else, it is advantageous for the cover element to be transparent, being composed, for example, of a transparent plastic such as acrylic glass.

In a further advantageous embodiment, the cover element can be embedded flush in a base body which has a depression and is in the form of a holder. In this case, a trough whose dimensions and shape correspond to those of the cover element is provided as a holder in the base body, and the cover element can be embedded in this trough in the course of the locking process. After being latched in, that surface of the cover element which faces away from the base body then ends flush with the surrounding flat surface of the base body. In addition to a uniform and straight appearance, this also ensures that there are not projecting corners or edges projecting out of the base body to disadvantageously influence the use of the object to which the cover is fitted.

In a further advantageous embodiment, the cover element can be tilted about the at least one hooking-in element after the latching connection has been released, and can be removed from the base body which is in the form of a holder. The tilting movement to be carried out simplifies handling, in particular during locking and/or unlocking of the cover by the user, and makes it easier to fit. Since the cover element is removable, it can be replaced by a new part without any problems, for example in the event of damage or wear.

In one preferred embodiment, the at least one hooking-in element is at least partially wedge-shaped and can engage with at least one cutout (which corresponds to it and is likewise at least partially wedge-shaped and in the form of a hooking-in opening) on the base body. This embodiment is particularly desirable when it is desirable to have a cover which is robust and less delicate, and which can still be locked and unlocked without any difficulties even in severe external conditions, for example where there is an increased incidence of dust or dirt.

In a further embodiment, the cover element has side slots, which originate from the outer edge of the cover element, in the area of the at least one hooking-in element, so that the area of the cover on which the at least one hooking-in element is located can be moved elastically and flexibly transversely with respect to the slot direction. This embodiment also offers the capability for a particularly robust configuration, since the elastic flexibility can nevertheless be ensured by appropriate positioning of the side slots, even if the walls are relatively thick, depending on the dimensions of the cover element. The side slots are in this case preferably incorporated in the area of the cover on which the at least one hooking-in element is located, and which is hooked into the base body before being latched in the course of the locking process. However, it is also feasible for the side slots to be incorporated on the cover element in the area of the at least one latching tab.

In a further embodiment, a hole whose diameter is larger than the slot width is provided at that end of each side slot which is remote from the outer edge of the cover element. This variant offers the advantage that the degree of mobility of the elastically flexible areas of the cover element can be defined as a function of the radius of the holes which are incorporated at the end of the side slots, without having to enlarge or modify the slot width. This procedure is particularly advantageous when it is desirable for the cover to be particularly robust and for the cover element to have relatively thick walls.

In a further advantageous embodiment, at least a portion of the area covered by the cover element can be sealed by means of a seal which is introduced between the cover element and the base body. This results in the cover and the object covered by it being protected against dust, dirt, moisture or other external influences so that it can also be used, for example in an industrial environment or in the open air, without the functionality being restricted.

In a further advantageous embodiment, a rim is provided on the cover element and/or on the base body which is in the form of a holder, which rim is opposite a rim on the base body or on the cover element when in the locked state, and to which the at least one latching tab is fitted, and at least one cutout is provided for unlocking the lock between the cover element and the base body. In this case, the cutout is preferably used to allow a tool, for example a screwdriver, to be fitted simply and without damaging the surfaces or edges of the cover when the cover is in the locked state. This means that the connection between the cover element and the base body can be unlatched, and that the cover element can thus be unlocked from its lock particularly easily owing to the lever effect which can be exerted by means of the tool to release the at least one latching tab from its engagement with the latching opening that corresponds to it.

In a further advantageous embodiment, a force can be exerted on the base body by means of the cover element via a contact tab which is in the form of a stop on the base body and is provided in the area of the cutout which is in the form of a hooking-in opening, in which case, the base body can be at least partially resiliently deformed, thus making it possible to produce a spring force which acts on the cover element via the contact tab. The contact tab which is formed on the base body in this case makes it possible to create a force application point on the base body for movement of the cover element from its latched connection to the base body, thus allowing a bending moment to be exerted in a controlled manner on the elastically deformable area of the base body. This makes it particularly simple and convenient for the user to release the lock between the cover element and the base body.

In a further advantageous embodiment, the cover element is elongated and can be moved in the longitudinal direction in the state in which it is locked to the base body, in order to unlock the lock. In this case, the cover element preferably has a profiled tab, which runs in the transverse direction, on its surface which faces away from the base body and which is preferably domed but can also be flat. This profiled tab allows movement in the longitudinal direction without the use of additional tools, thus making it particularly easy to release the latching connection between the cover element and the base body.

In a further advantageous embodiment, when it is in the unlatched state, the cover element has a bend along its longitudinal direction about a transverse axis which runs parallel to its flat surface. In contrast, in the latched-in state, the cover element is straightened against the curvature direction of its bend by elastic deformation, and is thus prestressed to a certain extent. This leads on the one hand to a label located under the cover being pressed against the body, and being fixed there, by the prestressed cover element, which serves in particular to prevent bends and ripples in the label material, and to prevent the label from sliding. On the other hand, the prestressing means that, during unlocking of the lock between the cover element and the base body, the cover element then tries to relax its prestress and to resume its originally curved position. Thus, once the latching connection has been released, the unlatched cover element then automatically bends away from the base body, and can thus be removed more easily from the depression, which is in the form of a holding trough, in the base body.

In one preferred embodiment, when it is in the unlatched state, the cover element is curved such that at least one outer end of the cover element, which is located in the longitudinal direction, is spread out in a direction which runs away from the base body. In this case, preferably throughout the lateral movement of the cover element which is required to unlock the connection, the hooking-in element at its other end remains engaged with the cutout which corresponds to it and is in the form of a hooking-in opening. The cover element can thus be detached from the base body, and removed from the holder, particularly easily and conveniently.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in more detail with reference to one preferred exemplary embodiment. In the associated drawings,

FIG. 1 shows a perspective illustration in the form of an oblique view of one preferred embodiment of a cover according to the invention,

FIG. 2 shows a plan view of a further preferred embodiment of a cover according to the invention,

FIG. 3A and FIG. 3B each show cross-section views of the same embodiment,

FIG. 4 shows a plan view of a further preferred embodiment of a cover according to the invention,

FIG. 5 shows a cross-section view of the same embodiment,

FIG. 6A and FIG. 6B each show detailed illustrations from the cross-section view of the same embodiment shown in FIGS. 4 and 5,

FIG. 7 shows a side view of one variant of the same embodiment, and

FIG. 8 shows a perspective illustration of a front panel which contains two different embodiments of the invention.

DETAILED DESCRIPTION

FIG. 1 shows a perspective illustration of the oblique view of a connecting socket provided with a cover for an inscription field. A cover element 8 a is shown in this case, which is intended for insertion in a base body 1 a which is in the form of a holder. In the illustration, the cover element 8 a is in the state which is latched in the base body 1 a. The cover element 8 a is formed from transparent plastic. Two hooking-in elements 10 a are provided on the cover element 8 a, are partially in the form of wedges, and can each engage with one of two appropriately corresponding cutouts, which are likewise partially in the form of wedges as hooking-in openings 12 a, on the base body 1 a. In the area of the two hooking-in elements 10 a, the cover element 8 a has side slots 25 which originate from the outer rim, which bounds the side surfaces 23, of the cover element 8 a, so that the area of the cover 8 a on which the two hooking-in elements 10 a are located can move elastically and flexibly transversely with respect to the slot direction. The side slots 25 are in this case incorporated in the area of the cover 8 a on which the two hooking-in elements 10 a are located, and which is hooked into the base body 1 a before being latched in the course of the locking process. A hole 26 whose diameter is greater than the width of the slots 25 is provided at that end of each side slot 25 which is remote from the outer edge or the side surface 23 of the cover element 8 a. In addition, two latching tabs 15 a are provided on the base body 1 a and can be engaged with two cutouts which correspond to the latching tabs 15 a, are provided on the cover element 8 a and are in the form of latching openings 16 a, thus forming a detachable latching connection between the cover element 8 a and the base body 1 a. In this case, the cover element 8 a is partially elastically deformable in the area of the two hooking-in elements 10 a in a direction which runs parallel to the surface 20 a, so that the cover element 8 a and the base body 1 a can be locked into one another such that they latch in a sprung manner. The surface 20 a is in this case that outer surface of the cover element 8 a which faces away from the base body 1 a in the latched-in state. In the course of the locking process, the cover element 8 a can be embedded flush in the base body 1 a, which has a depression 24 a and is in the form of a holder. In this case, the depression 24 a which is provided as a holder in the base body 1 a is in the form of a trough whose dimensions and shape correspond to the cover element 8 a, and in which the cover element 8 a can be embedded. After being latched in, the surface 20 a of the cover element 8 a then ends flush with the surrounding flat outer surface of the base body 1 a. The two side surfaces 23 of the cover element 8 a are slightly inclined and curved with respect to the surface 20 a, so that their dimensions and shape correspond to the external shape of the base body 1 a at the point which is provided for the cover element 8 a and, after the cover element 8 a has been latched in, likewise end flush with the outer surface of the cover element 8 a. A seal, which is not illustrated in FIG. 1, is incorporated between the cover element 8 a and the base body 1 a, and is used to seal a part of the area of the base body 1 a that is covered by the cover element 8 a from the cover element 8 a. Furthermore, a rim 27 a is provided on the base body 1 a, bounds the depression 24 a on one side and, in the locked state, is opposite a rim on the cover element 8 a, and to which the two latching tabs 15 a are fitted and on which a cutout 29 a is provided for unlocking the lock between the cover element 8 a and the base body 1 a. In this case, the cutout 29 a is to used to allow a tool, for example a screwdriver, to be fitted when the cover is in the locked state. The two latching tabs 15 a can thus then be disengaged from the latching openings 16 a which correspond to them as a result of the lever effect which can be exerted by means of the tool, the connection between the cover element 8 a and the base body 1 a can be unlatched, and the cover element 8 a can thus be unlocked from its lock. When the latching connection between the base body 1 a and the cover element 8 a is released, the cover element 8 a can then be tilted about the two hooking-in elements 10 a in the direction facing away from the base body 1 a, and can be removed from the depression 24 a in the base body 1 a.

FIG. 2 shows the plan view of one alternative embodiment of a cover according to the invention for an inscription field. A cover element 8 b is shown in this case which is intended for insertion in a base body 1 b in the form of a holder. In this alternative embodiment, the base body 1 b is, furthermore, itself in the form of a plug-in element of a front panel, and is intended for fitting to a metal frame, which is not illustrated in the figures but is in the form of a mount element. In the illustration, the cover element 8 b and the base body 1 b are in the unlatched state, and are not locked to one another. In the course of the locking process, the cover element 8 b can be embedded flush in the base body 1 b, which has a depression 24 b and is in the form of a holder (see FIG. 3 a). In this case, a trough whose dimensions and shape correspond to the cover element 8 b is formed as a holder in the base body 1 b, and the cover element 8 b can be embedded in it. After being latched in, the surface 20 b of the cover element 8 b then ends flush with the surrounding flat surface of the base body 1 b (see FIG. 3 b). The surface 20 b is in this case that outer surface of the cover element 8 b which faces away from the base body 1 b in the latched-in state. It has an essentially square shape. The cover element 8 b is formed from transparent plastic. Two hooking-in elements 10 b are provided on the cover element 8 b and can be engaged with a cutout, which is in the form of a hooking-in opening 12 b, on the base body 1 b. The hooking-in opening 12 b is in this case in the form of an elongated slot on the base body 1 b, which is used to hold both hooking-in elements 10 b on the cover element 8 b, with the slot on the one hand interrupting the direct connection between an end wall 28 b, which is immediately adjacent to the hooking-in opening 12 b, of the base body 1 b and the base of the depression 24 b in the base body 1 b, so that the end wall 28 b can move flexibly independently of the base of the depression 24 b, and, on the other hand, with an undercut being formed underneath the surface of the base body 1 b, in which the hooking-in elements 10 b on the cover element 8 b can engage. Furthermore, two latching tabs 15 b are provided on the cover element 8 b and can be engaged with in each case one of two cutouts, which correspond to the latching tabs 15 b, are provided on the base body 1 b and are in the form of a latching opening 16 b. This makes it possible to form a detachable latching connection between the cover element 8 b and the base body 1 b, with the base body 1 b being partially elastically deformable in the area of the hooking-in opening 12 b in a direction which runs parallel to the surface 20 b, so that the cover element 8 b and the base body 1 b can be locked to one another such that they latch in a sprung manner. Furthermore, a rim 27 b is provided on the base body 1 b, bounds the depression 24 b on one side and is opposite a rim on the cover element 8 b in the locked state, and on which a cutout 29 b is provided for unlocking the lock between the cover element 8 b and the base body 1 b. In this case, the cutout 29 b is used to allow a tool, for example a screwdriver, to be fitted when the cover is in the locked state. This procedure is additionally made even simpler by a slightly inclined cutout 14 which is provided on the cover element 8 b and is opposite the cutout 29 b in the base body 1 b in the locked state. A contact tab 19, which is in the form of a stop and projects transversely into the area of the elongated, slotted hooking-in opening 12 b, is additionally formed on the inside of the end wall 28 b of the base body 1 b. This allows a force to be exerted, by means of the cover element 8 b, on the end wall 28 b of the base body 1 b, with the base body 1 b being partially resiliently deformable there, thus making it possible to produce a spring force which acts on the cover element 8 b via the contact tab 19. The slightly rounded shape of the contact tab 19 means that, during the movement of the cover element 8 b from its latched connection to the base body 1 b, the force which is exerted by the cover element 8 b acts at a point on the base body 1 b. A bending moment is thus exerted in a controlled manner on the elastically deformable area of the base body 1 b, and its end wall 28 b. In this way, the two latching tabs 15 b can be disengaged from the latching openings 16 b which correspond to them as a result of the lever effect which can be exerted on the cover element 8 b by means of the tool which can be fitted to the cutout 29 b, the connection between the cover element 8 b and the base body 1 b can be unlatched, and the cover element 8 b can thus be unlocked from its lock. When the latching connection between the base body 1 b and the cover element 8 b is released, the cover element 8 b can be tilted about the two-hooking in elements 10 b in the direction facing away from the base body 1 b, and can be removed from the depression 24 b in the base body 1 b.

FIG. 3 a and FIG. 3 b each show a cross-section view of the same embodiment of a cover for an inscription field as shown in FIG. 2. The section is in this case along the line X-X shown between the two arrows in FIG. 2. In the illustration shown in FIG. 3 a, the cover element 8 b and the base body 1 b are in a state in which the cover element 8 b is just being inserted in the base body 1 b and the two are being locked to one another. In the illustration shown in FIG. 3 b, the cover element 8 b and the base body 1 b are already in the latched-in state and are locked to one another. In this case, and in contrast to FIG. 2, FIG. 3 a and FIG. 3 b each show that the cover element 8 b is embedded flush in the base body 1 b, which has the depression 24 b and is in the form of a holder, in the course of the locking process, and, after latching in, that surface 20 b of the cover element 8 b which faces away from the base body 1 b ends flush with the surrounding flat surface of the base body 1 b. The illustration also shows how at least one of the two hooking-in elements 10 b which are provided on the cover element 8 b engages with the hooking-in opening 12 b in the base body 1 b, with the hooking-in opening 12 b being in the form of an elongated slot in the base body 1 b, which is used to hold the two hooking-in elements 10 b on the cover element 8 b. In this case, the illustration in particular also shows that the slot which forms the hooking-in opening 12 b on the one hand interrupts the direct connection between the end wall 28 b of the base body 1 which is immediately adjacent to the hooking-in opening 12 b and the base of the depression 24 b in the base body 1 b, so that the end wall 28 b can move flexibly independently of the base of the depression 24 b, and that the slot which forms the hooking-in opening 12 b on the other hand forms an undercut underneath the surface of the base body 1 b, in which the hooking-in elements 10 b on the cover element engage. Furthermore, at least one of the two latching tabs 15 b which are provided on the cover element 8 b is illustrated, which engages with one of the two latching openings 16 b which correspond to the latching tabs 15 b and are provided on the base body 1 b. In this case, the latching openings 16 b also form an undercut underneath the surface of the base body 1 b, in which the latching tabs 15 b on the cover element 8 b engage. Since, in this alternative embodiment, the base body 1 b itself is furthermore in the form of a plug-in element of a front panel and is intended to be fitted to a metal frame, which is not illustrated in the figures but is in the form of a mount element, the base body 1 b for this purpose has two attachment lugs 17 and a centering tab 18. These are intended to engage with openings which are located on the metal frame and in each case correspond to them, and are used for positioning, for fixing and to provide strength for the base body 1 b on the metal frame. The attachment lugs 17 in this case each have a latching web 13 at their outer end, by means of which the base body 1 b can be attached such that it latches into the openings provided for this purpose in the metal frame.

FIG. 4 shows the plan view of a further preferred embodiment of a cover according to the invention for an inscription field. In this case, a cover element 8 c is illustrated which is intended for insertion into a base body 1 c in the form of a holder. The base body 1 c is in this case in the form of a front panel and has a number of openings 40 which allow access to connections for data lines with which the panel, for example, can be fitted. In the illustration, the cover element 8 c is in the state in which it is latched in the base body 1 c. The cover element 8 c is formed from transparent plastic. A hooking-in element 10 c is provided on the cover element 8 c and engages with a cutout on the base body 1 c, which is in the form of a hooking-in opening 12 c (see FIG. 6 a and FIG. 6 b). Furthermore, a latching tab 15 c is provided on the cover element 8 c and engages with a cutout which corresponds to the latching tab 15 c, is provided on the base body 1 c and is in the form of a latching opening 16 c (see FIG. 6 a and FIG. 6 b), thus forming a detachable latching connection between the cover element 8 c and the base body 1 c. The width of the hooking-in element 10 c measured in the transverse direction 30 and that of the latching tab 15 c are in this case each only slightly narrower than the width of the cover element 8 c itself. In this case, the base body 1 c is partially elastically deformable in the area of the hooking-in opening 12 c in a direction which runs parallel to the surface 20 c, so that the cover element 8 c and the base body 1 c can be locked to one another such that they latch in a sprung manner. The surface 20 c is in this case that outer surface of the cover element 8 c which faces away from the base body 1 c in the latched-in state. The cover element 8 c is designed to be symmetrical with respect to its central transverse axis 31. In this case, the hooking-in element 10 c and the latching tab 15 c have the same shape and the same dimensions, so that the cover element 8 c can also be rotated through 180° about the central axis at right angles to the surface 20 c, and can nevertheless still be locked to the base body 1 c in the same way. In this case, the original hooking-in element 10 c can then act as a latching tab, and the original latching tab 15 c can act as a hooking-in element. In the latched-in state, the cover element 8 c is embedded flush in the base body 1 c, which is in the form of a holder and has a depression 24 c (see FIG. 5). In this case, a trough whose dimensions and shape correspond to the cover element 8 c is provided as a holder in the base body 1 c, in which the cover element 8 c can be embedded in the course of the locking process. After latching in, the surface 20 c of the cover element 8 c then ends flush with the surrounding flat surface of the base body 1 c, and essentially matches its surface contour. The cover element 8 c is elongated and, in the state in which it is locked to the base body 1 c, can be moved in the longitudinal direction 35 for the purpose of unlocking the lock. The cover element 8 c in this case has (on its surface 20 c which is domed) a profiled tab 33 which runs in the transverse direction 30 and allows movement in the longitudinal direction 35 without the use of additional tools, thus making it possible to detach the latching connection between the cover element 8 c and the base body 1 c. In the unlatched state (see FIG. 5), the cover element 8 c is bent along its longitudinal direction 35 about the transverse axis 31, which runs parallel to its surface 20 c. In contrast, in the latched-in state, the cover element 8 c is straightened by means of elastic deformation against the curvature direction of its bend, and is thus prestressed to a certain extent. This leads to a label (not illustrated) which is located under the cover 8 c being pressed against the base body 1 c by the prestressed cover element 8 c, and being fixed there. On the other hand, the prestress leads to the cover element 8 c trying to relax its prestress and resume its originally curved position during the unlocking of the lock between the cover element 8 c and the base body 1 c. Thus, once the latching connection has been released, the unlatched cover element 8 c then automatically bends away from the base body 1 c. In the unlatched state, the cover element 8 c is then curved such that the outer end 36 of the cover element 8 c in the longitudinal direction 35 is spread out in a direction which runs away from the base body 1 c. In this case, throughout the lateral movement of the cover element 8 c which is required to unlock the connection, its other end remains engaged by means of its hooking-in element 10 c, with the hooking-in opening 12 c which corresponds to it. The cover element 8 c can then be tilted about the hooking-in element 10 c, and can thus easily be removed from the depression 24 c in the base body 1 c.

FIG. 5 shows a cross-section view of the same embodiment of a cover for an inscription field as that shown in FIG. 4. The section is in this case along the line Y-Y shown between the two arrows in FIG. 4. In the illustration shown in FIG. 5, the cover element 8 c and the base body 1 c are in the unlatched state and are not locked to one another. The hooking-in element 10 c is provided on the cover element 8 c and can be engaged with the cutout, which is in the form of a hooking-in opening 12 c (see FIG. 6 a and FIG. 6 b), in the base body 1 c. Furthermore, the latching tab 15 c is provided on the cover element 8 c, and the profiled tab 33 can be seen.

FIG. 6 a and FIG. 6 b show a detailed illustration of the cross-section view of the same embodiment of a cover for an inscription field as that shown in FIG. 4 and FIG. 5. In this case, those end areas of the base body 1 c which are identified by A and B in FIG. 5 are illustrated enlarged in FIG. 6 a and FIG. 6 b. In this case, the illustration shows, in particular, the hooking-in opening 12 c with which the hooking-in element 10 c that is provided on the cover element 8 c can engage. The latching opening 16 c is also shown, which corresponds to the latching tab 15 c provided on the cover element 8 c, and with which the latching tab 15 c can engage, thus making it possible to form a detachable latching connection between the cover element 8 c and the base body 1 c. The latching opening 16 c is in this case in the form of an elongated slot in the base body 1 c, which is used to hold the latching tab 15 c on the cover element 8 c, with an undercut being formed underneath the surface of the base body 1 c, in which the latching tab 15 c on the cover element 8 c can engage. The hooking-in opening 12 c is likewise in the form of an elongated slot in the base body 1 c, which is used to hold the hooking-in element 10 c, with the slot on the one hand interrupting the direct connection between an end wall 28 c of the base body 1 c, which is immediately adjacent to the hooking-in opening 12 c, and the base of the depression 24 c in the base body 1 c, so that the end wall 28 c can move flexibly independently of the base of the depression 24 c, and on the other hand forming an undercut underneath the surface of the base body 1 c, in which the hooking-in element 10 c on the cover element 8 c can engage. Furthermore, a contact tab which is in the form of a stop but is not illustrated in the drawing and projects into the area of the elongated, slotted hooking-in opening 12 c is formed on the inside of the end wall 28 c of the base body 1 c. This contact tab, which is in the form of a stop on the base body 1 c, is provided as the end section of the end wall 28 c, and is in the form of a resiliently flexible lug. The resiliently flexible lug is in this case firmly connected to the base body 1 c only at one of its ends, and can otherwise be resiliently deflected in the longitudinal direction 35 with respect to the base body 1 c. The contact tab allows the hooking-in element 10 c to exert a force on the end wall 28 c of the base body 1 c, which is the form of a lug, with the base body 1 c being partially resiliently flexibly deformable there, thus making it possible to produce a spring force which acts on the cover element 8 c via the contact tab. During movement of the cover element 8 c from its latched connection to the base body 1 c, the contact tab which is formed on the inside of the end wall 28 c of the base body 1 c results in the force which is exerted by the hooking-in element 10 c acting at a point on the end wall 28 c (which is in the form of a resiliently flexible lug) of the base body 1 c. A bending moment is thus exerted in a controlled manner on the elastically deformable area of the base body 1 c and its end wall 28 c. This makes it possible to release the lock between to release the lock between the cover element 8 c and the base body 1 c. The movement of the cover element 8 c in the longitudinal direction 35 then results in the latching tab 15 c being disengaged from the latching opening 16 c, thus unlocking the lock between the cover element 8 c and the base body 1 c.

FIG. 7 shows a side view of a further embodiment of a cover for an inscription field, which is very similar to that illustrated in FIG. 4 to FIG. 6 b and shows a variant of this. The figure in this case shows only the base body 1 c in the unlatched state, with the base body 1 c and the cover element 8 c not being locked to one another. The base body 1 c is in this case fundamentally designed in precisely the same way as the base body shown in FIG. 4 to FIG. 6 b. However, the end wall 28 d of the base body 1 c is in this case not in the form of a resiliently flexible lug. In fact, the end wall 28 d of the base body 1 c has a slot 38 which runs at least partially in the transverse direction 30 and is otherwise connected firmly to the base body 1 c at two of its sides. However, this means that it can also be deflected resiliently in the longitudinal direction 35 with respect to the base body 1 c, so that the mechanism for unlatching the connection between the cover element 8 c and the base body 1 c can be carried out in precisely the same way as that described above. The figure also shows that the surface of the base body 1 c has a dome 39 which runs in the transverse direction 30, with which that surface 20 c, which faces away from the base body 1 c, of the cover element 8 c, which is likewise domed, then ends flush in the latched-in state.

FIG. 8 shows a perspective illustration of a front panel which includes two exemplary embodiments two examples of the use of different embodiments of the invention. On the one hand, one variant of the embodiment which is shown in FIG. 2, FIG. 3 a and FIG. 3 b is in each case illustrated as an example of use at the left-hand and right-hand end of the connecting strip. In this case, the transparent cover element 8 b and the base body 1 b are in the latched-in state, and are locked to one another. FIG. 8 also shows that a rim 27 b is provided on the base body 1 b and is opposite the rim of the cover element 8 b in the locked state, and on which a cutout 29 b is provided for unlocking the lock between the cover element 8 b and the base body 1 b. This cutout 29 b is preferably used to allow a tool, for example a screwdriver, to be fitted when the cover is in the locked state, so that the connection between the cover element 8 b and the base body 1 b can be unlatched as a result of the lever effect which can be exerted by means of the tool, with the cover element 8 b being unlocked from its lock. On the other hand, FIG. 8 shows a fourth version of the embodiment described in FIG. 4 to FIG. 7, as an example of use. This is in each case a transparent cover element 8 c which is in the latched-in state with in each case one base body 1 c, with the cover element 8 c and the base body 1 c in each case being locked to one another. The base body 1 c in each case has a number of openings 40, which allow access to connections for data lines with which, for example, the panel may be fitted. The cover element 8 c is elongated, and, in the state in which it is locked to the base body 1 c, can be moved in the longitudinal direction 35 in order to unlock the lock. In this case, on its surface 20 c facing away from the base body 1 c, each of the cover elements 8 c has a profiled tab 33 which runs in the transverse direction 30 and allows movement in the longitudinal direction 35 without the use of additional tools, thus making it possible to release the latching connection between the cover element 8 c and the base body 1 c. Otherwise, this example of use also has the features described in FIG. 4 to FIG. 6 b (and FIG. 7).

LIST OF REFERENCE SYMBOLS

-   1 a, 1 b, 1 c Base body -   8 a, 8 b, 8 c Cover element -   10 a, 10 b, 10 c Hooking-in element -   12 a, 12 b, 12 c Hooking-in opening -   13 Latching web -   14 Cutout -   15 a, 15 b, 15 c Latching tab -   16 a, 16 b, 16 c Latching opening -   17 Attachment lug -   18 Centering tab -   19 Contact tab -   20 a, 20 b, 20 c Surface -   23 Side surface -   24 a, 24 b, 24 c Depression -   25 Side slot -   26 Hole -   27 a, 27 b Rim of the base body -   28 b, 28 c, 28 d End wall of the base body -   29 a, 29 b Cutout -   30 Transverse direction -   31 Transverse axis -   33 Profiled tab -   35 Longitudinal direction -   36 Outer end -   38 Slot -   39 Dome -   40 Opening 

1. An inscription field assembly comprising: a base body defining a depression having a first length, a first undercut at a first side of the depression, and a second undercut at a second side of the depression, the base body including a flexible side wall partially bounding the first undercut, the side wall being configured to flex along a direction extending between the first and second sides of the depression; and a cover element configured for insertion into the depression of the base body, the cover element including at least one hooking-in tab, which is configured to be inserted into the first undercut in the base body, and the cover element also including at least one latching tab, which is configured to be inserted into the second undercut in the base body, the cover element having a second length extending from a distal end of the hooking-in tab to a distal end of the latching tab, the second length being greater than the first length; wherein the cover element is configured to push the flexible side wall of the base body away from the depression until the latching tab of the cover element is aligned with an entrance to the second undercut of the base body when the hooking-in tab is inserted into the first undercut of the base body, whereby inserting the latching tab into the second undercut forms a detachable latching connection between the cover element and the base body.
 2. The inscription field assembly as claimed in claim 1, wherein the cover element is configured to be embedded flush in the depression of the base body.
 4. The inscription field assembly as claimed in claim 1, wherein the cover element is configured to be tilted about the at least one hooking-in tab to insert and remove the latching tab from the second undercut.
 5. The inscription field assembly as claimed in claim 1, wherein the cover element includes two spaced hooking-in tabs.
 6. The inscription field assembly as claimed in claim 5, wherein the first undercut of the base body defines an elongated slot extending along the first side of the depression of the base body.
 7. The inscription field assembly as claimed in claim 1, wherein the base body defines a cutout at a location along a perimeter of the depression, the cutout being sized to enable a tool to access a perimeter of the cover element when the cover element is inserted in the depression of the base body.
 8. The inscription field assembly as claimed in claim 1, wherein the cover element defines an inclined cutout that aligns with the cutout defined at the location along the perimeter of the base body.
 9. The inscription field assembly as claimed in claim 1, wherein the flexible side wall includes a contact tab that is pushed by the cover element when the hooking-in tab is inserted into the first undercut of the base body.
 10. The inscription field assembly as claimed in claim 1, wherein the hooking-in tab is sufficiently long to push the flexible side wall of the base body when the hooking-in tab is inserted into the first undercut of the base body.
 11. The inscription field assembly as claimed in claim 1, wherein the cover element includes a profiled tab extending outwardly away from the depression.
 12. The inscription field assembly as claimed in claim 1, wherein the base body includes a rigid side wall partially bounding the second undercut.
 13. A cover for covering an inscription field provided in a depression of a base body, comprising: an elongate body having a first surface and an opposite second surface, the elongate body being sized to fit within the depression of the base body so that the first surface faces the depression and the second surface faces away from the depression, the cover element being at least partially elastically deformed along a longitudinal axis of the elongate body so that the first surface has a convex curvature; a hooking-in tab configured to be inserted into a first undercut at a first side of the depression in the base body; a latching tab configured to be inserted into a second undercut at a second side of the depression in the base body; and a profiled tab extending outwardly from the second surface of the elongate body, the profiled tab extending transversely to the longitudinal axis of the elongate body.
 14. The cover as claimed in claim 13, wherein the cover element is formed from transparent material.
 15. The cover as claimed in claim 13, wherein the hooking-in tab and latching tab extend from opposite ends of the elongate body.
 16. A method of inserting a cover element over an inscription field of a base body, the method comprising: providing a base body and a cover element; inserting a hooking-in tab of the cover element into a first cutout defined in the base body at a first side of the depression; moving the cover element towards the first side of the depression in a first direction until contact is made between the cover element and a side wall of the base body; continuing to move the cover element in the first direction to flex the side wall of the base body away from the depression until a latching tab of the cover element is aligned with a second undercut defined in the base body at a second side of the depression; and moving the cover element in an opposite direction to insert the latching tab into the second undercut and to enable the side wall of the base body to unflex until the hooking-in tab is positioned within the first undercut and the latching tab is positioned within the second undercut.
 17. The method of claim 16, further comprising tilting the cover element about the hooking-in tab to align the latching tab with the entrance of the second undercut.
 18. The method of claim 16, further comprising positioning a label in the depression defined in the base body.
 19. The method of claim 16, further comprising removing the cover element from the base body including: moving the cover element towards the first side of the depression in the first direction until contact is made between the cover element and a side wall of the base body; continuing to move the cover element in the first direction to flex the side wall of the base body away from the depression until the latching tab of the cover element is moved out of the second undercut defined in the base body; tilting the cover element about the hooking-in tab so that the latching tab moves away from the depression; and removing the hooking-in tab from the first undercut defined in the base body.
 20. The method of claim 19, wherein moving the cover element towards the first side of the depression in the first direction comprises inserting a tool into a cutout defined in the base body at a location along the perimeter of the depression and pushing the cover element with the tool. 